Chromalox Big Red Book

Process Air and Radiant

• 2.5 - 5 kW • 240 Volt • Single Phase • Rust-Resisting Iron or MONEL ® Sheath Elements DAB Round Low Temperature Air Duct Heater Applications • Use in Dryers, Ovens and other Process Air Heating Equipment • Comfort Heating in Ducts, Load Banks and Humidity Controls • Sole Heat Source • Booster Heater in Process and Comfort Heating Ducts

Dimensions (Inches)

Baffle Disc

3

B 11/16

1

A

Construction Rugged KSEF Koilfin ® Elements UL Recognized and CSA Certified, are enclosed in a spun steel round frame. Element — Rust-Resisting Iron or MONEL ® sheath. Mounting Gasket — Furnished with each heater to minimize air leakage between the heater and the mounting surface or between heaters. Baffle — Steel baffle furnished to close the center opening. When a multiple of units are interconnected, only the first and last heater Easy Installation in Round Ducts — Flange permits easy ganging of units to augment heating capacity. Air is Forced Over Elements Only — The center opening of all DAB units may be closed with a sheet steel baffle furnished with the unit. are closed. Features

Application & Selection Guidelines Maximum Work Temperatures — Finstrip ® el- ements can generally be used at the following maximum temperatures, without exceeding their capability, if properly installed according to instructions packed with heaters.

Max. Outlet Air Temp. (°F) Iron Sheath MONEL ® Sheath

Air Velocity (Ft./Sec.)

4 9

—

250 370 450

150 250

16

Note — Maximum work temperatures are based on 25 W/In 2 . If elements have a lower watt density, work temperature may be in- creased; if watt density is higher, work temperature should be lower. Note — See Allowable Watt Density & Heater Selection Graphs in Technical section.

AIR DUCT

Specifications and Ordering Information

Dimensions (In.)

Wt. (Lbs.)

Watts Volts W/In 2 B Rust-Resisting Iron Sheath — for Max. Sheath Temp. to 750°F 2,500 240 27 12-3/16 6-9/16 DAB-30 Model A 4,000 240 25 17-11/16 12-1/16 DAB-48 5,000 240 27 19-11/16 14-1/16 DAB-54 MONEL ® Sheath — for Max. Sheath Temp. to 900°F 2,500 240 27 12-3/16 6-9/16 3,000 240 27 13-15/16 8-5/16 DAB-36

Stock

PCN

NS 264014 6 NS 264030 10 NS 264057 14 NS 264073 16

DAB-30M S 264022

6

3,000 240 27 13-15/16 8-5/16 DAB-36M NS 264049 10 4,000 240 25 17-11/16 12-1/16 DAB-48M NS 264065 14 5,000 240 27 19-11/16 14-1/16 DAB-54M NS 264081 16 Stock Status: S = stock NS = non-stock To Order— Specify model, PCN, watts, volts and quantity. Note — Chromalox can supply other sizes and ratings. Contact your Local Chromalox S ales office.

E-19